Investigating Pt/Pd papers

I'm looking for new Pt/Pd papers, both for personal use and for addition to our catalog. I've obtained samples of several types, and would like to hear suggestions for other papers. Specifically, I'm looking for thinner papers that work well and have a good wet strength, as well as japanese papers.

You probably know this, but the Fabriano needs to be acid treated prior to use. 5% oxalic for 10-15 minutes seems to do the job for recent batches. It seems to be even more buffered than it used to be.

Last time I tried Strathmore 500 it sucked. Acid didn't seem to help. This was probably over a year ago.

Rives BFK is a winner. Excellent for gumovers, as is Fabriano Artistico. Personally, I like the thinner version of BFK (175 gsm, I think), but the 280 gsm works well, too.

Last time I tried Strathmore 500 it sucked. Acid didn't seem to help. This was probably over a year ago.

However, Strathmore 500 Single-ply Plate is an excellent paper for albumen printing and can be difficult to find, so it would be great if B&S were to stock it. Single-ply is easier to coat by the float method than heavier papers, and 500 Single-ply Plate seems to be the closest to what was used traditionally in the age of albumen printing.

I really like both the 140lb and the 90lb weights of Arches Aquarelle. Needs an acid bath, but great paper. The 90lb has phenomenal wet strength, a very slightly warm base and light linen texture. It feels almost as thin as the Weston parchment but is infinitely stronger. Great for kallitypes, so I assume it would work for pt/pd.. I used to use Platine but the stuff is like a shingle.

I tried some Awagami Kozoshi 91g/m2 and it's vey nice. Much stronger than supposed for a 91 g/m2 paper. Easily brush coated. Need 2 drops more than usual on Arches Platine (I use 14 FO + 14 Pd for a 8x10") and about 1 step more exposure (x1.4). Clear easily.
My normal printing paper is Arches Platine. It's a wonderful paper if you use it at very high hygrometric level, good temperature over 20°C et let the coating rest for 5mn before cold drying back side.
Bad point, sometimes some black points, check paper against strong light before coating.

I tried some Awagami Kozoshi 91g/m2 and it's vey nice. Much stronger than supposed for a 91 g/m2 paper. Easily brush coated. Need 2 drops more than usual on Arches Platine (I use 14 FO + 14 Pd for a 8x10") and about 1 step more exposure (x1.4). Clear easily.
My normal printing paper is Arches Platine. It's a wonderful paper if you use it at very high hygrometric level, good temperature over 20°C et let the coating rest for 5mn before cold drying back side.
Bad point, sometimes some black points, check paper against strong light before coating.

Last time I tried Strathmore 500 it sucked. Acid didn't seem to help. This was probably over a year ago.

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Same here, but a friend has been getting some great results with palladium on Strathmore 500, with oxalic acid pre-soak. One of the virtues of this paper is that is has a very hard surface, and detail is better than I have seen with any paper with the iron processes, including COT 320.

I've bought Strathmore 500 Single-Ply Plate from Jerry's Artarama. They had the best price if you bought at least 25 sheets when I last checked. I gather from another albumenist who inquired that they don't have much 1-ply left and aren't likely to reorder, but if you're not doing albumen, 2-ply or heavier is probably better anyway, and it's pretty easy to find. I've seen it at Pearl Paint here in New York and at other places that sell watercolor and drawing papers.